Question about 1992 Buick Regal
There is a small 2 by 2 plastic box connected to my brake booster/master cylinder.It is bolted beside the intake manifold.I broke 1 plastic arm off when replacing the vacuum line.Could someone please identify this box so I can replace it.
First it is a junkyard or dealer item. I know what you need but don't know the name. Vacuum junction box is what I call it. There are many shapes and sizes. I call a dealer, tell them what I am looking for. They fax a picture and I pick out there number.
Posted on Jul 29, 2015
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Posted on Jan 02, 2017
The PCV valve gets it's vacuum from the plenum itself. Some 3.8L have different types of connections on the top of the valve (electrical or mechanical), but none have a vacuum line on them.
If you replaced the lower intake gaskets, it is very likely they crushed around the intake bolts. This will cause oil to leak into the intake and pool in the recesses of the lower intake. You are also likely to be leaking anti-freeze.
This is a very common problem with OEM gaskets. After market gaskets made by Fel-Pro have metal rings in them specially to stop this problem. They are available at NAPA and other stores.
Posted on Jun 06, 2009
when you are bleeding the system with the engine stopped ,you are pumping the brake pedal and fighting against the resistance of the vacuum chamber spring and you are not getting full pedal motion when bleeding.When you start the engine ,the vacuum created by the engine overcomes the spring force and allows the brake pedal to compress the brake piston itself and show the real position of the master cylinder piston.Start the engine while bleeding the brakes.
Posted on Jul 07, 2009
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Posted on Jul 09, 2009
it could be that the master cylinder is bad or the brake booster is bad also check the vacum hose going to the brake booster if it has a hole in it it will lose pressure and make the engine lose rpms
Posted on Aug 23, 2009
Tips for a great answer:
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